Drives do not go to reference position

Control "ON" function does not work. Drives do not go to reference position. No message displayed.

Cause:

• Drives for the height change magazine and infeed system are active and stop before reaching the position – over current active. See point 1.
• If “SF” and “BF” on the PLC are “Red”, some drives on Profibus are missing (no connection of height change position drive to Profibus). See point 2 - 6

Remedy:

1. Go to the mask for height change, push the reset button and the start button. The drives must reach the position without over current message. If the error comes again, check the free movement of mechanical system
2. Check Fuse F6/F7!
3. End resistant of all Profibus plugs must be “OFF”, only first and last plug “ON”.
4. Open the Profibus plug on height change positioning drives, then open and close again the connectors!
5. Check the Profibus cables!
6. Check the Profibus module for damages or bad contacts!